Compilare: user.cpp: In function ‘int back_(int, int)’: user.cpp:84:13: warning: unused variable ‘a’ [-Wunused-variable] int a = back_(st, poz - 1); ^ user.cpp:85:13: warning: unused variable ‘b’ [-Wunused-variable] int b = back_(poz + 1, dr); ^ user.cpp: In function ‘void citire()’: user.cpp:107:23: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(s, N, stdin); ^ user.cpp: In function ‘int main()’: user.cpp:114:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("evaluare.in","r",stdin); ^ user.cpp:115:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("evaluare.out","w",stdout); ^